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# Fixed Bugs

## Issue3

### Manifestation

> Calling:

>       graph_printout(
>       open("flowchart.svg", "w"),
>       "svg",
>       [final_task]
>     )

> dies with:

>     TypeError: "unbound method outward() ..." on call to "graph_printout"

### Diagnosis

> graph_printout resolves to graph.graph_printout (...)

> Should be task.pipeline_printout_graph (...)

> The error is in the documentation but the graph and print_dependencies modules should probably not be exported by default.

### Resolution

> 1. Changed documentation

> 2. Removed the following code from `ruffus/__init__.py`:

>        from graph import *
>        from print_dependencies import *

## mkdir

### Manifestation

> Calling:

>     from ruffus import *

>     directories = ['a', 'b']
>     @follows(mkdir(directories))
>     def task_which_makes_directories ():
>         pass

> dies with:
>   File “build/bdist.linux-i686/egg/ruffus/task.py”, line 1604, in task_mkdir TypeError: sequence item 0: expected string, list found

### Diagnosis

> mkdir should handle cleanly all three cases:

>     mkdir(['a', 'b'])
>     mkdir('a')
>     mkdir('a', 'b')

### Resolution

> 1. Changes to task.py
> 2. Ignores cases (especially race conditions) when the directory already exists
> 3. Added test case test/test_follows_mkdir.py

### Navigation

- index
- modules |
- next |
- previous |
Ruffus v. 1.0.8
- Home |
- Contents |
- Cheat sheet |
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- Future plans |
- Search »